diff --git a/mutalyzer/__init__.py b/mutalyzer/__init__.py
index 370cbd72c7573c916c1a57545b509b152cd22eb8..08757422e50400b160a48f978ed518b6807d9d4e 100644
--- a/mutalyzer/__init__.py
+++ b/mutalyzer/__init__.py
@@ -20,9 +20,9 @@ import os
 #
 # [1] http://peak.telecommunity.com/DevCenter/setuptools#specifying-your-project-s-version
 
-RELEASE = True
+RELEASE = False
 
-__version_info__ = ('2', '0', 'beta-11')
+__version_info__ = ('2', '0', 'beta-12', 'dev')
 __date__ = '30 Sep 2011'